package com.sky.controller.user;

import com.sky.constant.RedisKeyConstant;
import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Objects;

/**
 * @author 山顶洞人郑某
 * @className DishController.java
 * @date 2024 02 07
 */
@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;
    /**
     * 根据分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        //查询redis中是否缓存有菜品信息
        String key = RedisKeyConstant.DISH +categoryId;
        //redis中的string类型可以存储任意java数据类型
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if (list!=null){
            //如果存在，无需查询数据库，直接返回redis中缓存的数据信息
            return Result.success(list);
        }
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

        list = dishService.listWithFlavor(dish);
        //将数据缓存到redis中
        redisTemplate.opsForValue().set(key,list);
        return Result.success(list);
    }

}